For those of you who don't know after the events of X-Men DOFP director Bryan Singer may have confirmed a deadpool movie (for those of u who didn't know what u been living under a rock for the last month) beware there are spoilers ahead.
A totally different movie timeline
In the ending of DOFP we saw Mystique as Colonel William Stryker rescuing Wolverine from drowning which meant the Weapon X program never happened and Wolverine never got his adamantium claws and that means the timeline is distorted which means Wade Wilson never becomes that horrid version of the character we see in X-Men Origins: Wolverine he becomes the merc without the mouth.
The character was portrayed by Ryan Reynolds which was pretty decent until that point in the movie. Ryan Reynolds is the likely candidate to play the character again since he won't be reprising his role as DC's Green Lantern so he will be likely to want to play the role again. The only question is what would be the best way to introduce him into the X-Men universe again.
Deadpool: The Movie
Yeah its been coming since X-Men Origins release in 2009 and with the ending of DOFP it can be done. Deadpool definitely has a lot of great stories that are based hard violent and R rated stories.
One of the best and probably not going to be made stories is "Deadpool kills the Marvel Universe." With his healing factor he can go toe to toe with anyone in the marvel universe.
Deadpool's stories also include crossovers into the DC universe the most popular of which being "Deadpool vs Deathstroke." The character which Deadpool was basically based on Slade Wilson,Wade Wilson see the resemblance.
These are just some of the stories that could be made into movie titles but it would be better if they started out with something like an X-Men Origins movie which would be rated R and just us the violence,blood and guts we want.
[X-Men: Apocalypse](movie:1194267) featuring "The Merc With The Mouth" Deadpool
With X-Men: Apocalypse being announced for 2016 Deadpool could be one of the new characters being reintroduced in the movie. Recently it was announced that [22 Jump Street](movie:434853) star Channing Tatum will be playing Gambit in Apocalypse and is likely to get his own solo movie. This would make it the perfect way to introduce Deadpool into X-Men and make way for a spin-off movie and pure box office gold and plus how awesome would it be to see the virtually indestructible Deadpool teaming up with the X-Men.
Wade Wilson: Agent of SHIELD
Though it seems unlikely it would be amazing to see Deadpool appear on Marvel's only live action TV show at the moment but there is a theory and mind you this is just a theory on how [Deadpool](movie:38663) could appear on Marvel's [Agents of S.H.I.E.L.D.](series:722469)
WARNING SPOILERS AHEAD
On the episode known as providence skye erases all the identities of her fellow agents so Grant Ward would have to change his name maybe to Wade Wilson just a theory but hes got the martial arts back-round and he wanted the regenerative serum that brought Agent Coulson back to life with Deadpool having healing abilities this just changes how he got it. It seems unlikely though with FOX owning rights to Deadpool just as much as all other X-Men characters so don't get your hopes up.
Deadpool: The Series
Awesome thought right seeing Ryan Reynolds every week on television as everyone's favorite mercenary. Marvel already has plans to release about five different Netflix series based on [Daredevil](movie:47230), Ironfist, Luke Cage, Jessica Jones and Agent Carter which will all be pretty awesome
BUT its these plans that may intervene in the making of a Deadpool series with so many series already in production can Marvel make a Deadpool series though its not a very bad idea if left up to FOX to decide to start making series.